ἐπιτηδεύειν
From LSJ
λόγος γέ τοί τις ἔστι τῶν γεραιτέρων, ὅσ' ἂν ἀνόητ' ἢ µῶρα βουλευσώµεθα, ἅπαντ' ἐπὶ τὸ βέλτιον ἡµῖν ξυµφέρειν → there is in fact a saying among the elders, that whatever thoughtless, stupid decisions we make, they all turn out for the best for us
Greek > English (Woodhouse Verbs Reversed)
(see also ἐπιτηδεύω): follow, practise, be engaged in, carry on a profession
Lexicon Thucydideum
sectari, institutum habere, to follow, make it one's practice, 1.37.2, 6.54.5.